slide 17

XPath 1.0 Tree Still Bearing Fruit!

• We still have different types of nodes arranged in trees
  • Elements
  • Attributes
  • Comments, processing instructions
  • Document nodes (new! used to be root)
  • We now have XSD (XML Schema) data typing of these nodes
    (if we want)
    • XSD simple and complex typing
    • Typing by restriction and derivation, substitution groups, yowza!
    • Uh-oh ... the word “type” becomes problematic in XPath 2.0
• We still have document order (mapping to depth-first traversal)
• All the XPath 1.0 axes are intact
  (child::, parent::, ancestor-or-self:: etc.)